target-sparc/TODO

   1 TODO-list:
   2
   3 CPU common:
   4 - Unimplemented features/bugs:
   5  - Delay slot handling may fail sometimes (branch end of page, delay
   6  slot next page)
   7  - Atomical instructions
   8  - CPU features should match real CPUs (also ASI selection)
   9 - Optimizations/improvements:
  10  - Condition code/branch handling like x86, also for FPU?
  11  - Remove remaining explicit alignment checks
  12  - Global register for regwptr, so that windowed registers can be
  13  accessed directly
  14  - Improve Sparc32plus addressing
  15  - NPC/PC static optimisations (use JUMP_TB when possible)? (Is this
  16  obsolete?)
  17  - Synthetic instructions
  18  - MMU model dependant on CPU model
  19  - Select ASI helper at translation time (on V9 only if known)
  20  - KQemu/KVM support for VM only
  21  - Hardware breakpoint/watchpoint support
  22  - Cache emulation mode
  23  - Reverse-endian pages
  24  - Faster FPU emulation
  25  - Busy loop detection
  26
  27 Sparc32 CPUs:
  28 - Unimplemented features/bugs:
  29  - Sun4/Sun4c MMUs
  30  - Some V8 ASIs
  31
  32 Sparc64 CPUs:
  33 - Unimplemented features/bugs:
  34  - Interrupt handling
  35  - Secondary address space, other MMU functions
  36  - Many V9/UA2005/UA2007 ASIs
  37  - Rest of V9 instructions, missing VIS instructions
  38  - IG/MG/AG vs. UA2007 globals
  39  - Full hypervisor support
  40  - SMP/CMT
  41  - Sun4v CPUs
  42 - Optimizations/improvements:
  43  - Use TCG logic ops for VIS when possible
  44
  45 Sun4:
  46 - To be added
  47
  48 Sun4c:
  49 - A lot of unimplemented features
  50 - Maybe split from Sun4m
  51
  52 Sun4m:
  53 - Unimplemented features/bugs:
  54  - Hardware devices do not match real boards
  55  - Floppy does not work
  56  - Missing keys, sendkey support for all keys
  57  - CS4231 (DMA, make sound, make available for PC)
  58  - Add cg6, bwtwo
  59  - Arbitrary resolution support
  60  - PCI for MicroSparc-IIe
  61  - JavaStation machines
  62  - SBus slot probing, FCode ROM support
  63  - SMP probing support
  64  - Interrupt routing does not match real HW
  65  - SuSE 7.3 keyboard sometimes unresponsive
  66  - Gentoo 2004.1 SMP does not work
  67  - SS600MP ledma -> lebuffer
  68  - Type 5 keyboard
  69  - Less fixed hardware choices
  70  - DBRI audio (Am7930)
  71  - BPP parallel
  72  - Diagnostic switch
  73  - ESP PIO mode
  74
  75 Sun4d:
  76 - A lot of unimplemented features:
  77  - SBI
  78  - IO-unit
  79 - Maybe split from Sun4m
  80
  81 Sun4u:
  82 - Unimplemented features/bugs:
  83  - Interrupt controller
  84  - PCI/IOMMU support (Simba, JIO, Tomatillo, Psycho, Schizo, Safari...)
  85  - SMP
  86  - Happy Meal Ethernet, flash, I2C, GPIO
  87  - A lot of real machine types
  88
  89 Sun4v:
  90 - To be added